anomaly

Look up anomaly in Wiktionary, the free dictionary.

Anomaly may refer to:

Astronomy and celestial mechanics

• In astronomy, an anomaly is a quantity measured with respect to an apsis, usually the periapsis
• Eccentric anomaly, an intermediate value used to compute the position of a celestial object as a function of time
• Flyby anomaly, an unexpected energy increase during the flybys of the Earth by various satellites
• Mean anomaly, a measure of time in the study of orbital dynamics
• Pioneer anomaly, the observed deviation of the trajectories of some unmanned space probes, and especially Pioneer 10 and Pioneer 11
• South Atlantic Anomaly, the region in outer space where the Earth's inner van Allen radiation belt makes its closest approach to the surface of this planet
• True anomaly, the angle between the direction of periapsis and the current position of an object on its orbit
• Anomalous precession, another term for "apsidal precession"

Geophysics

• Bouguer anomaly, anomaly in gravimetry
• Free-air anomaly, gravity anomaly that has been computed for latitude and corrected for elevation of the station
• Gravity anomaly, difference between the observed gravity and a value predicted from a model
• Iridium anomaly, very rare element in the Earth's crust
• Magnetic anomaly, local variation in the Earth's magnetic field
  • Kursk Magnetic Anomaly, territory rich in iron ores located within Kursk Oblast, Belgorod Oblast, and Oryol Oblast
  • Temagami Magnetic Anomaly, large buried geologic structure in the Temagami region of Ontario, Canada

Biology

• Congenital anomaly, popularly referred to as a birth defect, a disorder present at birth, the result of an inherited gene mutation, an error during morphogenesis or fetal development, or an environmental factor
  • Physical anomaly, a deformation of an anatomical structure
    • Congenital vertebral anomaly, any of several malformations of the spine in animals and infants
    • Collie eye anomaly, congenital, inherited, bilateral eye disease of dogs involving the retina, choroid, and sclera
    • Coronary artery anomaly, congenital abnormality in the coronary anatomy of the heart
    • Ebstein's anomaly, congenital heart defect in which the opening of the tricuspid valve is displaced towards the right ventricle of the heart
    • Uhl anomaly, very rare congenital heart disease with a partial or total loss of the myocardial muscle in the right ventricle
  • Genetic anomaly, a disorder whose ultimate cause is a genetic or chromosomal mutation
  • Chromosome anomaly, a disorder whose ultimate cause involves a structural error in a chromosome or an atypical number of chromosomes
• Teratology, the study of all developmental anomalies

Physics

• Anomaly (physics), a failure of a symmetry of a theory's classical action
• Conformal anomaly, a quantum phenomenon that breaks the conformal symmetry of the classical theory
• Chiral anomaly, an anomalous nonconservation of a chiral current
• Gauge anomaly, the effect of quantum mechanics that invalidates the gauge symmetry of a quantum field theory
• Global anomaly, an anomaly in quantum physics
• Gravitational anomaly, an effect in quantum mechanics that invalidates the general covariance of some theories of general relativity
• Mixed anomaly, an effect in quantum mechanics
• Parity anomaly, an anomaly that is associated with parity
• Konishi anomaly, the violation of the conservation of the Noether current associated with certain transformations
• Anomalons, some odd particle interactions that are seen in some high-energy physics
• Anomalous skin effect, when electromagnetic fields penetrate into a metal by an amount comparable to, or much less than, the mean free path. Brian Pippard used it to determine the Fermi surface of copper.
• Anomalous dispersion (optics), when the speed of an electromagnetic wave increases with increasing frequency

In science fiction

• The Tycho Magnetic Anomaly (TMA) on the Moon in the novel and in the film 2001: A Space Odyssey by Sir Arthur C. Clarke and Stanley Kubrick
• The Fortean anomaly, as in the work of Charles Fort
• Spatial anomaly, broad term in the Star Trek dramas and other works of science fiction for any sort of extraordinary disruption in the space-time continuum
• Anomaly, a rift in the space-time continuum in the television series Futurama
• Anomaly, any shortcut to hyperspace travel in Robert Heinlein's novels of the 1950s, today called wormholes
• Anomaly (comics), a villain in some DC Comics
• "Anomaly" (Star Trek: Enterprise), a 2003 episode of Star Trek: Enterprise
• Anomaly (Primeval), a time portal in the TV series Primeval
• Anomalies, small areas in the S.T.A.L.K.E.R. series of games that have various effects on the game environment
• Anomaly, a bridge to another world in His Dark Materials, series of novels by Philip Pullman
• Phobos Anomaly, a level in Doom (video game), Episode 1 Level 8
• Deimos Anomaly, a level in Doom (video game), Episode 2 Level 1
• Anomaly, an unbalanced system in the motion picture The Matrix
• Anomalies, dangerous balls of energy in the game Metro 2033

Music

• Anomaly (Ace Frehley album) an album from 2009 by Ace Frehley
• Anomalies (album), an album from 2005 by Cephalic Carnage
• Anomaly (The Hiatus album), an album from 2010 by The Hiatus
• "Anna Molly" (a word play on on the word "anomaly"), a song by Incubus
• "An Anomaly", a 2007 song by It Prevails, from the album The Inspiration
• "The Anomaly", a 2011 song by Scar Symmetry from the album The Unseen Empire
• Anomalies, Vol. 1, a compilation album by the American rock band Cave In

Other

• The Anomalies, a 2003 novel by Joey Goebel
• Anomaly detection, the process of detecting anomalies from the other, relevant data
• Anomaly in software, anything that differs from expectations, whether the expectations resulted from documentation, experiences, or otherwise
• Anomalistics, the study of scientific anomalies
• Ararat anomaly, an object on Mount Ararat in Turkey that some have claimed to be the remains of Noah's Ark
• Market anomaly, a distortion in prices in a financial market

See also

• Irregular (disambiguation)
• Outlier

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